Nice work every1!
Morse code is my favorite

The reason for my post was to show you guy some game I have played long time ago.
Its no pixel art game, its actually 3d, but its a free mini game with 1 button..
Most of the games you have designed for your mockups do not have that much actions to do with your one button

Thisone does, and thats why I wanted to show you

Its allready too late to get idea's from it, (havnt seen the topic earlyer, vacation) but its fun to play

Ninja Academy (for windows and Mac)
With just 1 button you can walk, jump, throw ninja stars and aim, slash, make wall jumps, kill enemys by slashing them, head butting them, throwing them in the air, push them away from your paths, evade other enemys, collect things and that all with just 1 button...

Oh and the second button is only used to shut the game

You can download it for free here:
http://hamumu.com/gamelets.phpIf the game doesnt work on your windows, install the driver of your video card.
There is some other fun and free games on there too, like NPC quest and castle smash